Triple purification-still.



D. P. MOORE.

TRIPLE PURIFIEAUON STiLL.

.Tqua.

APPLICATION FILED FEB-17 Patented Nov, 7, 1916.

3 $HEUS--SHEET 1,

Juvcnfoz D P. MOORL TRIPLE PURQFICATION STLL. I

AFPLICATION FILE-D mi. n. 1916,

Patented Nov. '7, 1916.

3 SHEETS-SHEET 2 31 1110 n-foq,

D; P. MOORE.

TRIPLE PURIFICATKON STILL.

APPLICATION F!LED FEB. 17. 1916-.

a SHEETSSHEET 3.

Patented Nov. 7,

" STATES PATENT OFFICE.

DAVID PELTON MOORE, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR, BY

DIRECT AND MESNE ASSIGNMENTS, OF ONE-HALF TO JESSE SPAULDING MERRILL, OF WASHINGTON, DISTRICT OF COLUMBIA, AND ONE-HALF TO GEORGE H. DRAPER,

OF THE DISTRICT OF COLUMBIA.

TRIPLE PURIFICATION-STILL.

1 0 all whom it may concern:

Be it known that 1, DAVID PEL'roN MOORE, a citizen of the United States, residing at \Vashington, in the District of Columbia, have invented certain new and useful Improvements in Triple Purification-Stills, of which. the following is a specification, reference being had therein to the accompanyingdrawing.

This inventidn relates to improvements in. triple purification ater stills, one ob ectv been devised, and employ means for supplying air to the water vapors so that the distilled water 1s sufficiently aerated, the air,

however, being introduced at a point where it-tends to chill the vapors too suddenly, and also where a vacuum is caused in the air admitting chamber, and thus interteres with -the proper flow of air in the proportion ,necessary to aerate the water. This is particularly true of the construction shown in the Power Patent No. 988,661, while in the construction shown in the Manahan patent, the air did not properly commingle with the vapor before being introduced into the corn denser tubes. I j

It is therefore a further objectof this invention to so place the air supplying mei'nber or medium as to keep the same at the proper temperature before the commingling thereof with the water vapors,

.thus insuring the thorough commingling.

of the air in the desired I proportion, so that the distilled water is naturally aerated and is, not fiat. when drawnfrom the still. ,To do this, the air conveying tubes must project into the-vapor conduits, which 7 Specification of Letters Patent.

ervoir through the pipe 22 to the evaporating in turn must project into the lower ends of the c ondensentubes, the various tubes in-' creasing in diameter from the air outlettubes to the condenser tubes.

With the foregoing and other objects in Patented Nov. 7, 1916. Application filed February 17, 1916. Serial No. 78,927.

view and which will be apparent as the de: scription proceeds, this invention resides in the novel arrangement and combination of parts hereinafter disclosed, the scope of the lnvention, however, being. limited only by what is claimed.

In the accompanyingdrawings .Figure, .1 1s a sectional side elevation of a water still made according toand embodying the present invention. 'Fig. 2 is an enlarged sectional view showing on an enlarged scale theposition of the air and vapor conduction members. Fig. 3 is an enlarged detail sectional view showing amodified arrangement of the air supplying member. Fig. 4 is a top plan view of the air heating chamher and a cross section of the evaporating chamber, as illustrated in Fig. 3. Figs. 5, 6, and 7 are detail views of other modified forms of air supplying members.

Referring to the drawings and more particularly to Figs. 1 and 2 thereof, the numeral 10 designates the evaporating chamber of the present mechanism,. which has mounted therein the heating coihlland has disposed thereupon in superposed relation the distilled water reservoir 12 and the condenser 13. Mounted in the condenser 13 are a plurality of condenser tubes 14 which have formed in the top thereof ports 15, while in the cover 16 of the condenser 13 are ports 17, all of usual construction. Raw water is supplied to the condenser 13 at the lower portion of its body by means of the valve controlled pipe 18, while leading therefrom at the water level adjacent the upper end thereof, is a pipe 19 having an outlet spout 20 disposed above the level maintaining res- 21 which is in communication chamberlO, an overflow casing 23 .surrounding thereservoir 21. A drain pipe 24 leads from the pipe 19, while. a clean-out 'valve 2-5 is connected adjacentthe bottombf'the condenser 13 with theipipe 19. A pipe,.26',

leads from the. overflow pipe 23 and isdn- BEST AVAlLABLE COP communication with the drain pipe 27 which .vapor inlets 31 which have in communication therewith and, projecting through the reservoir '12 into the lower end of the con- (lensing tubes 14, the vapor conducting tubes By this means vapor isipermitted to enter the tubes ll where it is condensed and drips through the outlets 33 at the bottom of the tubes l-l into the reservoir .12, where the same may be drawn therefrom by means of the outlet 34. Mounted within the evaporating chamber, and adapted to be heated directly from the vapor arising from the water therein due to theheating of the coil 11, is an air containing medium 35 which, as shown in Figs. L and 2, is provided with the radial air'inlet pipes 36 mounted in the wall of the chamber 10 and in communication with the outside air. Upstanding from the medium 35 are a pluwhich project into the lower ends of the tubes a suiiicient distance to thoroughly cominingle the heated vapor moving upwardly through the tubes and, which to a great extent induce a suction action through the nipplesfi? so that the heated air,- which naturally rises, is accelerated in its flow and thus thoroughly aerates the vapor during the condensing operation thereof.

Mlapted to be connected in each one of the inlet pipes 36 is an adjusting valve '38, by means of which the flow of air tothemediam 35 may be regulated to a nicet'y.

in the construction shown in Figs. 3 and l, the air containing medium 35 has its air inlet ports 39 connected to the openings 40 at the bottom of the condensing chamber 11), while in the construction as shown in Fig 5. the spoke arranged tubes 41 of the heating medium 35 are dished to assist in conducting heated air tothe center, due to the natural tendency of the heated air to rise.

in the construction shown in Fig. 6, brackets l! are attached to the inner wall of the evaporating chamber 19" to receive the rectangular-in-cross-section ring 43 which constitutes the air heating medium, there being led from the ring upwardly therefrom the nipples 37. while the dished spoked tubes H are provided with similar air nipples 237". In this form, the air induction pipes i-lfi are led tlrough the wall. but may be ledtroin the bottom without departing from the spirit of this invention.

in the construction shown in Fig. 7,'the air heating medium consists ot' the annular member 45 having the tubular members 46 disposed in parallel. the air directing nippics 87 being carried by the hollow members withthe air induction port or pipes 29 either pro ecting from belowgor radially. With this construction of still,-with the air supplying and heating medium disposed within the evaporating chamber, the air is thoroughly heated without tending to chill the vapors at a disadvanta eous point as is the case wherethe air Suppl disposed at the top and adjacent the bottoin of the distilled water reservoir, as in common practice.

ying chamber is It isalso advisable with the presentstill to I have disposed within the evaporating chamber a thermostatic control 47 which operates through the electrical circuit 48 an ,air controlling member or fan 49 so that the sup-c ply of.air to the heating medium will bein proportion to the vapor, t'hus insuring auto matic aerating means to insure of a more.

filtered it and brought from a point distant from the still and thus insure aclean sweetwater. rality of air conducting pipes or nipples 37 In order that theair chamber 35 may be automatically fdralned of any condensation,

a tube is led therefrom'to a point below the permitted to flow through the air outlets; into the larger vapor conduits, which it turn have their outlet ends projected in o i the lower ends ofthe still larger, condenser tubes. It has also been discovered that the cool air entering the heating coil or medium within the evaporating chamber, has n baffiing effect upon the vapor, and that precipitants, such as sulfur and magnesia, are thrown down at this'point, instead-of being carried into the vapor outlets and condenser tubes as in the two forementioned patented structures. I

What I claim, as new, is: p 1. A water still, including an evaporating chamber. having vapor outlets, an air heater I dis osed within the evaporatinf'chamber heate a an having an air inlet an ir outlets extending into the vapor outlets, a. condenser having condenser tubes, and into which the i vapor outlets extend, the air outlets being i so arranged that'the air and vapor are commingled in the vapor outlets and in the con- I denser tubes.

2. A' water still, including an evaporator,

a distilled water. reservoir located thereabove, a condenser having a plurality of tubes located above the reservoir, said evaporator having vajpor outlets extending through the reservoir projected intothelow'er ends of the condenser tubes, and an-iair heater located within the evaporator and having an outside air inlet and a plurality of air outlets, said outlets being of lesser diameter and pro ected into and in communication with the vapor outlets, the upper ends of said air outlets tercondenser tubes located above the reservoir,

a'distilled water-reservoir located 'therea plurality of vapor conduits of lesser'dia/meter than said condenser tubes leading from the evaporator into the lower ends of the condenser tubes,"an air heater located within the evaporator and having an air inlet, and a plurality of air outlet'pipes of lesser diameter than the vapor conduits and leading from the heater and into the vapor conduits, the upper ends of. said pipes term'inating'within the conduits.

4. A water still, including an evaporator, a distilled water reservoir located thereabove, a condenserhaving a plurality ofcondenser tubes open at their lower ends, and 11'1'COII1I11UI11Cat10n W1th the reservoir,

a plurality of vapor conduits one to each air withthe vapor. is attained within the vapor conduits and" finally in the condenser -tubes. -5. A Water still, including an evaporator,

above, a condenser having a plurality of con-' the heater and projected in the vapor con duits. I 4

6. A water still, including an evaporator,

a condenser, a plurality of condenser tubes mounted in the :condenser, a distilled water reservbir' in communication with the 'condenser tubes, a plurality of vapor conduits of lesser diameter than the tubes leading from the evaporator intothe condenser tubes, and an air heater and circulator mounted within the evaporator and having an air inlet and a plurality of air outlets, said air outlets being surroundedby and in communicationwiththe lower ends of the vapor conduits.

7. A water still, including an evaporator, I a condenser, an air supplying and heating denser tubes open at their lower. ends and in denser tubes. 1

therein, said medium having an air inletextended exteriorly of the evaporator, automatically controlled means for regulating the flow of -air through said inlet, and a plurality of air inlets extending to commingle' with the vapors during condensation thereof.

9. A water still, including an evaporator having a heating coil mounted the rein,'an air supplying and heating medium mounted within the evaporator above the coil, an air inlet leading from the exterior of the evaporator to said medium; a plurality of air outlet pipes leading from the, medium, a plurality of vapor conduits telescopically fitting over the upper ends of the air outlet pipes, a condenser having a plurality of condenser tubestelescopically fitting over the upper ends of the vapor conduits, and a distilled water reservoir also in communication withthe tubes. 10. A water'still, including an evaporator, a condenser. having a plurality of condenser tubes, a plurality of vapor conduits, one to each tube projected into said tubes and providing a distilled water outlet between. the tube and the conduit, an air supplying and heating medium mounted within theevaporator, an air inlet for the medium, a plucondensed and aerated water from the con 11. water still, including anevaporator, a distilled water reservoir, a condenser having a plurality of condenser tubes, a plurality of vapor tubes leading from the .evaporator into the condenser tubes, an air heater incased by and vrithin the evaporator, air inlet for the air heater, and

a plurality of air outlettubes, one to each" vapor. tube, projected intothe lower ,ends of. said-vapor tubes, said air, vapor and condenser 'tubes being successively telescoped to provide concentric spaces, the spaces of the condenser tubes being in communication with thereservoir. i

12. The combination with a water still having an evaporatin chamber, a condens ing chamber, means or conductingthe vae por from the evaporator to the condenser,

and an air supplying. means for supplying air to the vapor in transit, of automatic 13o means for controlling the supply of air to the air supplying means including a thermostat mounted within the evaporator, and air directing means operably (:onneeted to the thermostat and the air supplying means.

13. The combination with a water still having an evaporating ehamber, a condensing chamber. means for conducting the Va por from the evaporator to the condenser, and an air supplying means for supplying air to the vapor in transit, of an air supplying fan located at a distant point and in communication with the air supplying means, and thermostatically controlled means for controlling the air supplying fan.

air supplying fan.

14. The combination with a water still having an evaporatin chamber, a oondensing chamber, means or conducting the V0- por from the evaporator to the condenser,

andan air upplying means for supplying air to the \'apor in transit, of an air supplying fan located at a distant point and in communication with the air supplying means, a thermostat located in the evaporator, and electrical means connected to the thermostat for in turn controlling the In testimony whereof I aflix my signature.

'DAVI'D PELTON' MOORE. f 

